<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
    <meta name="author" content="夏亚飞">
    <title></title>
    <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet">
    <style>

    </style>
</head>

<body>
    <button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="left" title="Tooltip on left">Tooltip on left</button>
    <button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="top" title="Tooltip on top">Tooltip on top</button>

    <button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Tooltip on bottom">Tooltip on bottom</button>

    <button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="right" title="Tooltip on right">Tooltip on right</button>
    <script src="bootstrap/js/jquery.min.js"></script>
    <script src="bootstrap/js/bootstrap.min.js"></script>
    <script src="bootstrap/js/bootstrap.js"></script>
    <script src="bootstrap/js/jquery.js"></script>
    <script src="bootstrap/js/npm.js"></script>
</body>

</html>